palatial chateau Get Printable Handwriting Watch Say It Video Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a large and fancy house or mansion. Example Sentence The palatial chateau that the millionaire lives in is up that hill. More Example Sentences They visited a palatial chateau in France. Synonyms mansion; palace; castle Antonyms hut Hear It! Say It! Write It! palatial chateau Switch to cursive Start Share with your friends: Watch Say It Video